TY - GEN AU - Mathis, Philippe TI - Graphs and networks: multilevel modeling T2 - Geographical information systems series SN - 9781848210837 U1 - 388 PY - 2007/// CY - Hoboken PB - John Wiley KW - CARTOGRAPHY KW - GRAPH THEORY KW - GROUND TRANSPORTATION KW - TRANSPORT THEORY ER -